Switch On - Airgetlám: Take Up a Sword, Silver-Colored Arm (剣を摂れ、銀色の腕スイッチオン・アガートラム, Ken wo Tore, Gin'iro no UdeSuicchi On - Agātoramu?) is the Noble Phantasm of Bedivere of the "if" history of the Lion King. Having lived over 1500 due to carrying the unreturned Excalibur, he coincidentally made his way to Avalon and turned to stone. Found by Merlin, he granted Bedivere the silver arm to compensate having only have one arm, given the name of Nuada's Divine Construct silver arm. Replacing his lost right arm, it only bears the name of Nuada's arm to "back of the existence" of Bedivere's, as it is a "transient Noble Phantasm." Its true existence is that of the unreturned Excalibur, concealed by Merlin to be able to return it to the Lion King.

It is a "Continuously Active-Type Noble Phantasm" that he keeps active in combat mode at all times during battle in Fate/Grand Order. Although he normally possesses the output of an average human, performing activation for combat raises his STR, CON, and AGI parameters and grants bonuses for his sword attacks. His status sheet, STR A, END B, and AGI A+, takes these increases into account. Due to its nature and the fact that he is still living during the Camelot Singularity, he is near the end of his existence, and the arms eats away at his soul with each use. It is able to nullify the Gifts of the Knights of the Lion King, but each battle leaves him in great pain.

After Bedivere is able to return the sword and reach the Throne of Heroes after the Singularity, Switch On - Airgetlám, through a special case being made, became instead an "imaginary construction of the Holy Sword", as Excalibur no longer resides in his arm. Rather than eating into his soul, it is activated by the bond connecting Master and Servant. It is in that a sense a "new Noble Phantasm."[2]

Flash, Silver-Colored ArmDead End - Airgetlám

Japanese name:

Owner:

Range:

1~40

Maximum number of targets:

300 people

Dead End - Airgetlám: Flash, Silver-Colored Arm (一閃せよ、銀色の腕デッドエンド・アガートラム, Issense yo, Gin'iro no UdeDeddo Endo - Agātoramu?) is a special slashing technique utilizing the silver arm that is concealing a "colossal amount of magic energy." It can only be activated during the arm's "combat activation" mode with a True Name release, a "flashing anti-unit, anti-army annihilation attack" that blazes through the enemy line by means of a "hand swing."

Profile
One of the Knights of the Round Table from Arthurian legends.
The first member of the Knights of the Round Table, he served as the steward of the royal court, the king's care-taker.
The individual who was present at the king's final moments.

Level 2 Bond
In the Round Table where heroes surpassing humans gathered, he served King Arthur as the "only normal human" among them. Despite being one-armed, he has being regarded as a knight possessing excellent sword skills and, at the same time, an outstanding general.
However, he is not a Heroic Spirit. Merely a human from the past.

Level 3 Bond
In this work, this Bedivere lived as an "if that did not returned King Arthur's holy sword", and King Arthur died without ascertaining the relinquishing of the holy sword. As atonement, he kept on living during a long time for the sake of "returning the holy sword this time for sure", and eventually ran out of strength at Avalon.

Level 4 Bond
Then, during the anthropic principle incineration and the holy city dominion by the Lion King seen this time, he once again stood up. Merlin gave him - a mere knight - the power to fight against the other Knights of the Round Table, but it was something that would shave off his life in the end. Still, said power was by no means inferior to that of the Knights of the Round Table.
In other words--- the holy sword that he failed to return.

Level 5 Bond
"Take Up A Sword, Silver-Colored Arm"
Rank: C Type: Anti-Unit
Switch On・Airgetlam.
While it has the same name as the Divine Construct employed by the Celtic war god, its true identity is that of "the holy sword Excalibur that he failed to return".
A constantly active-type of Noble Phantasm. By releasing the True Name with the words "Flash, Silver-Colored Arm (Dead End・Airgetlam)", a anti-army extermination attack is performed.